How much does a catfish?

Please clarify your question! "How much does a catfish?" is incomplete. Do you mean:

* How much does a catfish *cost* ? This would depend on the size, type, and where you're buying it.

* How much does a catfish *weigh* ? This varies greatly depending on the species and age of the catfish.

* How much *food* does a catfish need? This depends on the size and activity level of the catfish.

Let me know what you're looking for, and I can help you find the answer!